//package One;
//import java.io.*;
//import java.net.*;
//import java.util.*;
//
///**
// * This program implements a simple server that listens to port 8189 and echoes back all client
// * input.
// * @version 1.20 2004-08-03
// * @author Cay Horstmann
// */
//public class EchoServer
//{
//   public static void main(String[] args)
//   {
//      try
//      {
//         // establish server socket
//         ServerSocket s = new ServerSocket(8189);
//         // wait for client connection
//         Socket incoming = s.accept();
//         try
//         {
//            InputStream inStream = incoming.getInputStream();
//            OutputStream outStream = incoming.getOutputStream();
//
//            Scanner in = new Scanner(inStream);
//            PrintWriter out = new PrintWriter(outStream, true /* autoFlush */);
//
//            out.println("Hello! Enter BYE to exit.");
//
//            // echo client input
//            boolean done = false;
//            while (!done && in.hasNextLine())
//            {
//               String line = in.nextLine();
//               out.println("Echo: " + line);
//               if (line.trim().equals("BYE")) done = true;
//            }
//         }
//         finally
//         {
//            incoming.close();
//         }
//      }
//      catch (IOException e)
//      {
//         e.printStackTrace();
//      }
//   }
//}
